[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Getting a IOMemoryDescriptor from a struct uio?

Subject: Re: Getting a IOMemoryDescriptor from a struct uio?
From: Quinn <email@hidden>
Date: Mon, 5 Jan 2004 11:28:30 +0000

At 11:41 -0700 2/1/04, Nathan T. Hjelm wrote:

I am working on a device driver which simply creates a /dev entry a usb
device but I am running into problems because in order to call Read or
Write on an IOUSBPipe I need a IOMemoryDescriptor. I found some code on
the google used in the IOStrorageFamily but it crashes my kernel on a call
to write.

It looks like you 'stole' this code from "IOMediaBSDClient.cpp", which makes a lot of sense. I guess the next thing I'd investigate is the crash itself, to see if you can track it backwards from there.

S+E
--
Quinn "The Eskimo!" <http://www.apple.com/developer/>
Apple Developer Technical Support * Networking, Communications, Hardware
_______________________________________________
darwin-kernel mailing list | email@hidden
Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel
Do not post admin requests to the list. They will be ignored.

References:
	>Getting a IOMemoryDescriptor from a struct uio? (From: "Nathan T. Hjelm" <email@hidden>)

Prev by Date: Re: Typo in /bsd/hfs/hfs_hotfiles.c
Next by Date: (no subject)
Previous by thread: Getting a IOMemoryDescriptor from a struct uio?
Next by thread: pthread_cancel problem on MAC OSX
Index(es):
- Date
- Thread

Home